In message , "Dave Plowman (News)"
writes
In article ,
Clint Sharp wrote:
Frankly, not nice. Roll on LED technology. No warm up time, much longer
life than CFL, much nicer colour rendition, dimmable and you can manage
the colour temperature much more easily than CFL technology.

You're joking, I presume? Or been reading the adverts?
Nope, hence the comment 'Roll on LED technology.' It's not really
domestic tech yet, however my comments are still valid, warm up time is
none existent, it is easily dimmable, colour is adjustable if you use
RGB LEDs and life span is much longer than any other lighting tech I can
think of. You don't have to worry about draughts with LEDs either, CFLs
dim if the glass envelope is cooled so you have to shield them if they
are used in draughty environments and most CFLs can't be used in
enclosed fixtures, I don't know why.

I found;
http://www.lumileds.com/solutions/solution.cfm?id=4
to have some interesting reading. I particularly liked the Amish buggy
lamp...

The first applications of new lighting technology tends to be film and TV
where costs don't matter much, but small size, efficiency etc might well
do for specialist situations. And LED are still virtually nowhere as key
lights due to poor colour temperature and spectrum.
I suspect TV and film lighting is a much more exacting application than
illuminating my living room.
I may not have understood the meaning of 'key' light but lumileds seem
to be pushing their products for film and studio use..
http://www.lumileds.com/pdfs/AS12.PDF

Not sure if these could be used for 'key lighting' though?
Whereas fluorescent
(dimmable) have been used for some time.
Dimmable fluorescents have been around for a long time (70s IIRC, maybe
longer?), dimmable CFLs are available too but they're not too easy to
find or cheap and AFAIK, cannot be used with conventional dimmers.
They are used as FX background
lighting, though.

LEDs or fluorescents?
--
Clint Sharp